(b) The following data represent a sample of weekly wages (in kwachas) earned by part - time employees at a department s

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B The Following Data Represent A Sample Of Weekly Wages In Kwachas Earned By Part Time Employees At A Department S 1 (78.15 KiB) Viewed 70 times

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(b) The following data represent a sample of weekly wages (in kwachas) earned by part - time employees at a department store: 85 77 88 90 108 85 79 91 98 88 106 80 98 95 98 68 107 71 62 86 91 93 80 108 93 95 100 74 105 73 92 118 119 110 106 102 110 83 104 115 For this sample: (i) Construct a frequency distribution using the classes K 60 to under K70, K70 to under K80, and so forth. (2 Marks) (ii) Draw the histogram (2 Marks) (iii) Estimate the mean (2 Marks) (iv) Estimate the variance (3 Marks)